Hark! Did I hear someone mention the Erin Corwin case?!?
I think there's probably a lot that we could glean in terms of the SBCSO's desert search methods and capabilities by reviewing the info on that forum...I may spend some time doing a look back tonight to see what comments posters were making r/t LE updates or lack thereof, etc., just to see how it does or doesn't match up with what we're seeing and hearing here, which is largely radio silence.
JMO.
ITA on the similarities with BT and Erin Corwin's disappearances, both went missing in the desert in San Bernardino County, and searches were conducted by SBCSO's SAR.
IMO, there are some key differences with EC's disappearance, which IMO is in part why they searched for months in abandoned mines for her until they found her.
No one knew where Erin went missing or with whom, they just found her car near where she lived by Twenty Nine Palms Marine Base, after she didn't come back home after telling her husband she was going on her own early in the morning to go check out places to go to take pictures nearby for when her mother came for a visit in the coming weeks.
In Erin's case, she disappeared when alone, she was having an affair with a married neighbor (Christoper Lee), she was supposedly pregnant possibly by him and had told him, and texted a friend back home that he said he had a 'big surprise' for her when they secretly met up and went out in the desert (she may have thought it was a marriage proposal according to her friend), but instead he took her life and disposed of her body down a mine shaft.
LE was able to narrow it down to him as a main POI, served warrants on his computer and cell phone, and found that he had been researching places to dispose of a body out in the desert so it would never be found on his computer, including maps of where dozens of abandoned mines were, and his cell pings and other evidence eventually led them to find her.
I'm not trying to discourage research on EC searches, just providing an overview that they searched for months in mines because they had evidence CL had killed her and disposed of her body out there in a mine. They also weren't as closed lipped in Erin's disappearance, and shared info on the progress of their investigation and searches on a fairly regular basis IIRC.
With BT, she was with her husband when she went missing, and her whereabouts are unknown (no evidence she went missing where RT said she did according to LE after 10 days of searching) unless LE has found evidence in their ongoing investigation since finishing their search out in the desert that she went missing and / or was left or put somewhere else.
MOO